COVID-19 Frontline Ep. 10: Facial mask, to wear or not to wear?

As the coronavirus outbreak grows in scale and scope, combating COVID-19 has become a global issue. CGTN's live program "COVID-19 Frontline" invites experts from China, the UK and the U.S. to exchange ideas. In this episode, the experts discuss whether everyone should wear masks to contain the spread of virus or not.